When it first arrived vacuum packed in a relatively small box, I was sceptical to say the least.  Also, the overall thickness of the mattress had me concerned.  But after letting it expand and sleeping on it for about 2 weeks now this mattress has seriously impressed me.  When you lay on it, its firm and supportive but with a soft floaty layer that does not put pressure on you and cut off blood circulation (this happens to me with other mattresses). The way it is designed with zones and hybrid foam with springs keeps you in a really good sleeping position all night. I can also turn easily without feeling like I have to dig myself out of a hole like with other foam mattresses.  Im also a hot sleeper and this feels like it wicks away moisture and heat and helps keep me cool. Glad I bought this. When I need to replace other mattresses in my house Im just going to buy these.